【Adjustable Size】Size 13-19 (Inner diameter approx. 17mm-19mm). The anti-snoring ring allows for some size adjustment to ensure a secure fit on the finger when worn. The anti-snoring ring is made of pure copper, which is resistant to cracking and rust. Anti-snoring ring, anti-snoring measures, anti-snoring goods, sleep aids, nasal breathing, anti-snoring goods, ring, anti-snoring and insomnia prevention, unisex, good sleep, adjustable, set of 3 With bag Please check the actual photos for the product condition ♪ #Aki's Recommended Goods are here Y12①-22 9131